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Synthesis and Characteristic of PBAE and PBAE-pDNA polyplex NPs.
A) Synthesis of PBAE. B)1H NMR spectra of i-PABE and PABE. C) Gel Permeation Chromatography result of PBAE; D) FTIR spectra of i-PBAE and PBAE. E) Particle sizes of PBAE-pDNA polyplex NPs with 75:1 PBAE/pDNA weight ratio and F) Zeta potentials of PBAE-pDNA polyplex NPs. The data represented the mean ± SD (n = 3 per group). G) TEM image of PBAE/pDNA NPs (weight ratio 75:1, without staining). Scale bar, 500 nm.
